/*
 * Copyright © 2016-2017 European Support Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.openecomp.sdc.validation.impl.util;

import org.openecomp.sdc.common.errors.Messages;
import org.yaml.snakeyaml.error.MarkedYAMLException;
import org.yaml.snakeyaml.parser.ParserException;

public class YamlValidatorUtil {

    private YamlValidatorUtil() {
    }

    public static String getParserExceptionReason(Exception exception) {
        String reason = null;
        if (exception.getCause() instanceof MarkedYAMLException) {
            if (exception.getCause() != null) {
                if (exception.getCause().getCause() instanceof ParserException) {
                    reason = exception.getCause().getCause().getMessage();
                } else {
                    reason = exception.getCause().getMessage();
                }
            }
        } else if (exception instanceof MarkedYAMLException) {
            reason = exception.getMessage();
        } else {
            reason = Messages.GENERAL_YAML_PARSER_ERROR.getErrorMessage();
        }
        return reason;
    }
}
